Merge "[Output Swithcer] Fix volume control issue for Group" into tm-dev am: c3b88dbe

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19565636



Change-Id: I41de438a0f85937056462c1a6a5872fa8f606bc1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>